DB, thanks for the warning about sticking head out of the window. But if I was you I'd write a letter of complaint to national rail, maybe they could change the trains just for you.
Back to the point, I've had no problem with Saucony, having run for the past 18 months in Grid Nitrous without any complaints (I've run 2 full marathons, 4 halfs, a few smaller races and, of course, training runs). Obviously I haven't run in the same pair, I buy a new pair after about 500 miles use. But, I buy the make and model. If I bought a different model, ran a 10K in them and both my feet fell off, I would reallise that they are not the shoes for me, I wouldn't then try them in a race!
I agree with what already has been said, shoes that are OK for one person may not be OK for someone else. They only solution to getting the perfect shoe is to have them custom made so you get the correct size, width and fitting.
One more thing, I would never buy a new model of shoe I've never tried before via mail order or the web. I'd go to a specialist running shop like Run and Become, where you can try them on and they will even let you run up and down the street in them. Then you can tell if they feel uncomfortable or tight fitting.
Considering you are supposed to be an "experienced runner" you should've known better than to use the shoes in a 1/2 marathon after they had already almost destroyed your feet in a 10K run. I don't think Saucony is too blame.